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fluor

/fluɔɹ/noun

fluor is a noun meaning “The mineral fluorite” (English Wiktionary, September 2026). It is spelled F-L-U-O-R and has 2 syllables, and it appears about once in every 6 million words in written English (wordfreq, 2021 data). The plural of fluor is fluors.

What does fluor mean?

noun

  1. 1

    datedThe mineral fluorite.

  2. 2

    obsoleteA flow or flux.

  3. 3

    obsoleteMenstrual periods.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How do you pronounce fluor?

  • US /fluɔɹ/

Fluor has 2 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-fluor.wav, Wikimedia Commons (author and licence on each file's page).

Forms of fluor

  • fluors plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How common is fluor?

Fluor appears about once in every 6 million words in written English, the 75,877th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

Where does fluor come from?

Borrowed from Latin fluor.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).